JPH0642620B2 - Receiving machine - Google Patents

Description

Detailed Description of the Invention

The present invention relates to a receiver, for example, a DBS (di) that can preset channel selection data unique to each of a plurality of channels.
rect-broadcast satellite) This is applicable to receivers. B. Summary of the Invention The present invention is a receiver in which a memory that stores tuning data corresponding to a plurality of channels is stored, and when the tuning data corresponding to an arbitrary channel is erased from the memory, the erased channels are erased. It is possible to easily confirm whether or not the erase is performed by reading out the channel selection data of a predetermined channel other than the above and selecting the channel. C Conventional Technology In DBS broadcasting, one company rents a broadcasting band because receivers scattered over a wide area can directly receive broadcasting waves coming from artificial satellites through a small parabolic antenna. It is considered to be used as means for transmitting information from the center to each branch via receivers installed in the branches scattered over a wide area. In this case, the user can preset a channel capable of transmitting information by specifying an arbitrary frequency included in the usable broadcast band, and thus by transmitting a plurality of information by using a plurality of channels simultaneously. , The utilization efficiency can be improved. D Problem to be Solved by the Invention By the way, as a means for presetting the frequency of each channel, a channel frequency memory having a memory area for storing the frequency of each channel is prepared in advance in the receiver. It is conceivable that the tuning data representing the frequency assigned to each channel is sequentially key-input by a predetermined number of digits. For example, the frequency band of the used band is 11.700 [GHz] to 12.199 [GH
In the case of z], the frequency of each channel is preset in units of 0.001 [GHz] so as to maintain a frequency interval that does not cause interference or interference between the channels. As a practical key input device, as shown in FIG.
Numeric keypad consisting of "0" to "9" keys, preset mode designation key "STORE", end key "ENTER"
The input device 1 having and can be applied, for example, "11.700"
When presetting the frequency of [GHz] to the first channel, first, [STORE]-[1]-[ENTER]
Select each channel by selectively operating each key in the order of R], and then [1]-[1]-[7]-

[0]-

[0]
The frequency is specified by selectively operating each key in the order of [ENTER]. However, unlike general television broadcasting and radio broadcasting, the DBS broadcasting allows the user to arbitrarily select the carrier frequency for transmitting information as described above, and thus the carrier frequency may be changed as necessary. Conceivable. In such a case, there may be a case where it is necessary to erase frequency data as channel selection data of the preset channel. By the way, if the DBS receiver is provided with such an erase function, the number of modes in which the user can perform a key input operation is further increased, and the user is not familiar with each mode. May occur, which increases the burden on the user. Even if the user performs an input operation to execute the erase operation in such a state, the erase operation may not be performed due to an erroneous operation.
Therefore, it is desirable that the receiver informs whether or not the erase has been performed. The present invention has been made in consideration of the above points, and it is an object of the present invention to provide a receiver capable of informing a user of whether or not erasure is surely performed when erasing channel selection data of an arbitrary channel. It is what E Means for Solving the Problems In order to solve the problems, in the present invention, the memory 24 for storing tuning data corresponding to a plurality of channels.
When the channel selection data corresponding to one of the plurality of channels (the fifth channel in the embodiment shown in FIG. 4) is erased from the memory 24,
The channel selection data of a predetermined channel (7th channel in the embodiment shown in FIG. 4) among a plurality of channels is read out and the predetermined channel is selected. F action When the channel selection data of an arbitrary channel (5th channel) is erased from the memory 24, a predetermined channel (7th channel)
Channel selection data is read from the memory 24 and selected. As a result, the user has a designated channel (7th channel).
It is possible to confirm that the channel selection data of an arbitrary channel (fifth channel) has been erased through the channel selection. G. Embodiment An embodiment in which the present invention is applied to a DBS receiver will be described in detail below with reference to the drawings. In FIG. 1, the broadcast wave received by the antenna 11 is supplied to the information reproducing circuit 13 of the broadcast wave receiving unit 12, and the information reproducing circuit 13 outputs the channel corresponding to the channel selection signal S1 supplied from the channel selection circuit 15. Receive broadcast waves. The tuning circuit 15 is controlled to tune by a tuning command signal S2 generated in the signal processing circuit 14 of, for example, a microcomputer, and sends a tuning signal S1 corresponding to the tuning command signal S2. In the signal processing circuit 14, as described above with reference to FIG.
Numeric keys having "0" to "9" keys, preset mode designation key "STORE", and end key "ENTER"
A key matrix 21 including an input device 1 having an “R” is connected, and when each key of the key matrix 21 is selectively operated, code data representing a corresponding numeral is taken into the signal processing circuit 14. . In the case of this embodiment, the preset mode designation key "STO
"RE" is used not only for designating a preset mode for presetting predetermined frequency data to an arbitrary channel, but also for designating an erase mode for erasing preset frequency data. When numerical data is keyed in digit by digit using the numeric keypad, the signal processing circuit 14 stores the digit data in the input data register 25 and sets the character generation means 22 based on the data captured digit by digit. Operate a predetermined digit, eg 5
When the input data is frequency data, the upper digit is sequentially shifted to the lower digit, and when the input data is channel data, the lower digit is sequentially shifted to the upper digit. The characters corresponding to the data are displayed. Further, when the end key "ENTER" is operated, the signal processing circuit 14 writes the numerical data fetched from the numeric keypad in the preset generation mode to the non-light emission generation memory 24 as the channel frequency memory to thereby obtain the frequency data of each channel. Is stored, and in the erase mode, frequency data of a predetermined channel is erased on the basis of the numerical data taken from the numeric keypad. In the above configuration, the signal processing circuit 14 executes the presetting process and the erasing process of the frequency of each channel according to the processing procedure of FIG. That is, step SP1
Signal processing circuit 1 after the program is started in
Step 4 determines whether or not the data corresponding to the preset mode designating key "STORE" is given from the key matrix 21 in step SP2, and when a negative result is obtained, it waits for the code data to be given. Preset mode specification key "STORE" by the user
When is pressed and the code data is given to the signal processing circuit 14, an affirmative result is obtained in step SP2, and the signal processing circuit 14 proceeds to the next step SP3 to change the numeric data corresponding to the ten keys from the key matrix 21 to the channel data. It is fetched and stored in the input data register 25. At the same time, the register 26
The data indicating that the first digit channel data has been given is stored in. After that, the process proceeds to step SP4 to drive the character generating means 22 to display the channel data in the least significant digit of the input data display 23, and the next step SP5.
At, it is determined whether the input of the channel data is completed. That is, the signal processing circuit 14 determines whether or not the code data is obtained from the end key "ENTER" of the key matrix 21 in step SP5, and if a negative result is obtained, the signal processing circuit 14 returns to step SP3 to output the next digit of the channel data. Execute acquisition. In this way, steps SP3-SP4-SP are obtained until a positive result is obtained at step SP5.
The loop of 5 is repeated and the channel data of a predetermined number of digits is fetched and displayed. When a positive result is obtained in step SP5, the address of the non-volatile memory 24 corresponding to the channel data is addressed, and then the operation of fetching frequency data after step SP6 is started. Steps SP6 to SP9 are a group of steps for judging whether the mode designated by the user is the preset mode or the erase mode. In the case of this embodiment, the user inputs the frequency data.

[0]-
When each key is operated in the order of [ENTER], it is determined that the erase mode is designated, and the process proceeds to step SP11. When the frequency data is input by a predetermined digit, that is, by 5 digits, it is determined as the preset mode. Then, the process proceeds to step SP10. The signal processing circuit 14 first takes in the frequency data of the first digit in step SP6, judges whether or not the frequency data of the first digit is "0", and if a negative result is obtained, the signal processing circuit 14 proceeds to step SP10 to perform presetting. After executing the operation, the process returns to step SP2 and waits for a command for the next preset operation or erase operation. On the other hand, when a positive result is obtained in step SP6, the most significant digit of the input data display 23 is displayed in step SP7, and then the process proceeds to step SP8. For example, two digits are displayed based on the contents of the digit register 26. It is determined whether eye frequency data is input. Here, in step SP4, when the channel data is displayed on the input data display 23 from the least significant digit side, in step SP7, when the frequency data is displayed on the input data display 23, the highest data is displayed. The display is made from the digit side so that the user can easily confirm whether the data being input is the channel data or the frequency data. If a positive result is obtained in step SP8, the signal processing circuit 14 determines that the preset mode is designated because "0" is not input next even if "0" is input in the first digit. Then step SP10
After executing the preset operation, the step SP2 is executed.
Return to. If a negative result is obtained in step SP8, the process proceeds to the next step SP9 and the end key "ENTER" is entered.
It is determined whether the code data of "R" is given. When a negative result is obtained, the process returns to step SP8 and it is determined whether or not the second digit of the frequency data is input. Therefore, when "0" is input as the first digit input data, the loop of steps SP8 to SP9 is repeated in a state in which neither the second digit numerical key nor the end key "ENTER" is pressed. From this stage, if the second digit number key is pressed, the process proceeds to the preset mode step SP10 as described above, while if the end key "ENTER" is pressed, the erase mode steps SP11 to SP13.
Move on to. When the signal processing circuit 14 determines that the erase mode is designated by the positive result obtained in step SP9, the signal processing circuit 14 proceeds to step SP11 and stores it in the memory area of the non-volatile memory 24 designated by the channel data. The frequency data being erased is erased. After that, the process proceeds to step SP12 and the frequency data of another channel that has been preset, for example, the channel next to the erased channel, is stored in the non-volatile memory 24.
The channel selection and display operation of the next channel is executed based on the frequency data fetched from step S13 and further to step SP13, and the process returns to step SP2 to wait for the next designation. For example, when the user erases the frequency data of the fifth channel while the frequency data of the first channel, the fifth channel, the seventh channel, and the tenth channel are stored in advance, the user may select [STORE].
After selecting and operating the keys in the order of E]-[5]-[ENTER], specify the channel,

Erase may be indicated by operating the keys in the order of [0]-[ENTER]. In this case, the receiver determines through step SP2 to SP5 that the channel in the preset mode or erase mode is the fifth channel, and at that time, in step SP4, the channel is changed as shown in FIG. 4 (A). The numeral "5" shown is displayed. Then, step SP
It is determined through 6 to SP9 that the erase mode has been designated, and the frequency data of the fifth channel is erased from the non-volatile memory 24 in step SP11. afterwards,
The broadcasting waves of the seventh channel are selected and received through steps SP12 and SP13. At this time, step SP6
At the step, as shown in FIG. 4 (B), the numeral "0" is displayed in the most significant digit of the input data display 23, and the step SP13
At the stage, as shown in FIG. 4 (C), the number "7" indicating the next seventh channel is displayed in the lowest digit of the input data display 23. As described above, according to this embodiment, since the erase operation is executed by using the configuration related to the preset operation, the erase function can be provided without complicating the device and increasing the price. Also, since the erase operation can be instructed by the same operation as the input operation in the preset mode and the operation is simplified, the user can easily learn the operation when the erase mode is specified, and it is easy. It can be operated. Furthermore, after the erase ends, the next channel is selected and displayed so that the user can confirm whether or not the erase has been performed. In addition, in the above description, although the embodiment in which the present invention is applied to the DBS receiver has been described, the applicable range is not limited to this.
The present invention can be widely applied to a receiver in which predetermined channel selection data is assigned to each of a plurality of channels and preset. H Effect of the Invention As described above, according to the present invention, by erasing the channel selection data of an arbitrary channel and then displaying the channel of a predetermined channel, it is possible to easily confirm that the channel has been erased. A receiver with a simple structure can be obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a receiver according to the present invention, FIG. 2 is a flow chart showing the processing procedure of the signal processing circuit, FIG. 3 is a schematic diagram showing an input device, and FIG. It is an approximate line figure showing change of a display at the time of operation. DESCRIPTION OF SYMBOLS 1 ... Input device, 12 ... Broadcast wave receiving part, 14 ... Signal processing circuit, 21 ... Key matrix, 23 ... Input data display, 24 ... Non-volatile memory, 25 ... Input data register, 26 ...... The digital register.

Claims (1)

[Claims] 1. A receiving means for selecting and receiving a broadcast wave of a predetermined channel corresponding to channel selection data from a plurality of broadcast waves, an input means having a ten-key pad and a mode designation key, and the plurality of broadcast waves. Memory means for respectively storing channel frequency data corresponding to the above, and signal processing means for discriminating between the preset mode and the erase mode based on the data input from the ten-key pad and the mode designation key, and the signal processing means. And a character generating means for displaying a character corresponding to the data fetched from the input means on the display unit, the signal processing means being input by the ten-key pad in the preset mode. Write the numerical data to the memory means, and in the erase mode, specify the channel specified by the numeric keypad. Receiver the frequency data, wherein the erasing from said memory means.